| 摘要 |
<p>In the present invention, a storage battery unit (10) is provided with a plurality of storage battery modules (11-15) connected in parallel. The plurality of storage battery modules (11-15) are divided into a plurality of groups. The current pathways of the storage battery modules belonging to each group are joined together in parallel, forming a plurality of group current pathways. The plurality of group current pathways are joined together in parallel and connected to a charging/discharging device (40). A breaker (20) includes a plurality of opening/closing units (21, 22) inserted to each of the plurality of group current pathways. When one opening/closing unit among the plurality of opening/closing units (21, 22) opens, the remaining opening/closing units also open in lockstep.</p> |
